Marker controlled crosspoint switching system including trunk hunting, transfer, and conference call arrangements



Oct. 11, 1966 MARKER CONTROL Filed Oct. 17. 1961 DISTRIBUTOR R. P.SANDERS ETAL INCLUDING TRUNK HUNTING, TRANSFER, AND CONFERENCE .'CALLARRANGEMENTS LED CROSSPOINT SWITCHING SYSTEM 24 Sheets-Sheet 1CROSSPOINT NETWORK MARKER H8 CONTROL H6 INVENTORS. RICHARD P SANDERSJOHN G. VAN BOSSE DO LD K MELVIN ATTY.

Oct. 11, 1966 R. P. SAND s ETAL 3,278,689 MARKER CONTROLLE ROSS NTSWITCHING SYSTEM INCLUDING TRU HUNTING, TRANSFER. AND

CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24 Sheets-Sheet 2 iiig\Q a Q I if? 245 242 (205E 7 J: 243 11% A 252 3 L3 7 g5? 251, .Tala .TZS'.vb AAA-21,4 Wm i l i OUZ SLM

SLM

R. P. SANDERS ET AL ROLLED CRO Oct. 11, 1966 24 Sheets-Sheet 3 FiledOct. 17. 1961 25 M22 EOE J m: WEE: EOE I ll 4 P W m m m m J F, V, L 2min J WM ow 6 ow 5 5% it 0 O I arD x52 8 2m N; :m M22 558 E3). 2 22 8m 7%I 9 0 5. 1 Em K1 KEV; w fig Oct. 11, 1966 R. P. SANDERS ET AL 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24Sheets-Sheet 5 LOGIC LIX FI6.8A

Oct. 11, 1966 p, SANDERS ETAL 3,278,689 MARKER CONTROLLED CROSSPOINTSWITCHING SYSTEM INCLUDING TRUNK HUNTING, TRANSFER, AND

CONFERENCE CALL ARRANGEMENTS 24 Sheets-Sheet 6 Filed Oct. 17. 1961 Io 53 8? 8- 3- mg in 3- oT E i: in E. EEEQEE $8 0 E3 mzE u D5 1 25 NQ u OHum n 4 1 M28 m1 08 n 53 Oct. 11, 1966 R. P. SANDERS ET 3,278,639

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS 24 Sheets-Sheet '7 Filed Oct.17. 1961 & A

2.. ow mm 6 mm NNK mmih

Oct. 11, 1966 p, SANDERS ET AL 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND

I CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24 Sheets-Shee 8 Oct.11,1966 p, SANDERS ET AL 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Z4 Sheets-S heet 9 Filed Oct.17. 1961 Gdf BUS DRIVER BUS DRIVER FI6.12A

Oct. 11, 1966 R. P. SANDERS ET AL 3,278,689 MARKER CONTROLLED CROSSPOINTSWITCHING SYSTEM INCLUDING TRUNK HUNTING, TRANSFER, AND CONFERENCE CALLARRANGEMENTS Filed Oct. 17. 1961 24 Sheets-Sheet l0 TRA NSLATORTRANSLATOR TRAN SLATOR TRANSL ATOR MATRIX MATRIX MATRIX MATRIX Tn T 2 5THC 2 I I m Cp3 Cp3 SET Lm PATHFINDER BUS DRIVER TO X-POINT NETWORK SETEn FI6.12B

Oct. 11; 1966 R p, SANDERS ET AL 3,278,689 MARKER CONTROLLED CROSSPOINTSWITCHING SYSTEM INCLUDING TRUNK HUNTING, TRANSFER. AND

CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 2.4 Sheets-Sheet 11F1613 CALLING PARTIES CROSSPOINT C L L LE TIES K (L0 LIN s NETWORK 2F1614 FIGlT SL0 32 9 L (168 LdGB] Law I Y "o R -i#- no Luly-y LIX)CENTRAL OFFICE FIG 16 F I 6.18

I SLd32 M1322 Loly EIG.19 FIG-2 0 L 032 Ld682 no Ldly? EELKO FIG. 22

FIG. 21

Oct. 11,

R. P. SANDERS ET AL Filed Oct. 17. 1961 24 Sheets-Sheet 15 LCIZ K LdlZ';i

..v 3 2430 SIG. DIAL TONE TONE T 5 a I GATE GATE AqIZ 7 I TO TONE GEN.Akh 1 24m Htn Do'h I Th "-1 UI') D L 0| 1 R 0 S21 Cp3 Hl' H H2) LC 52 CFA) Ld5Z7 T L52 -v +V M M I z m I 7 245| 1 50 H2 FIG. 24

Oct. 11, 1966 R. P. SANDERS ET 3,

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24Sheets-Sheet 14 TRANSL. MATRIX 2540 Oct. 11, 1966 p, SANDERS ET AL3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24Sheets-Sheet 15 0 4 Cpf IIO us LOGIC 26|0 7 \7' 7 I I I *1, A I

= LOGIC Enl 25 lm c n n R 0 BUSC l I a l En6 Wm E -fi 1 S l a I FnI Tm qo R o 3 I-n6 Om R o E o J I60 R I J CROSSPOINT MARKING LOGIC 2650 FIG.26

Oct. 11, 1966 p, SANDERS ET AL 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17'. 1961 24Sheets-Sheet 16 MARKER TRANSLATOR STATE MATRIX LOGIC 2720 Oct. 11, 1966N E ETAL 3,278,689

. P. MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNKHUNTING, TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 196124 Sheets-Sheet l7 LOGIC 28|O Oct. 11, 1966 R, P, SANDERS ET AL3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND I CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24Sheets-Sheet 18 GATE Dn GATE C GATE A n FIG. 29'

Oct. 11, 1966 R p SANDERS ET AC 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND

CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24 Sheets-Sheet l9 FIG.30

Oct. 11, 1966 R. P. SANDERS ET AL 3,278,689

MARKER CONTROLLED CROSSPOINT SWITCHING SYSTEM INCLUDING TRUNK HUNTING,TRANSFER, AND CONFERENCE CALL ARRANGEMENTS Filed Oct. 17. 1961 24Sheets-Sheet 20 PARITY CHECKER 3|5O

22. A TELEPHONE SWITCHING SYSTEM COMPRISING A PLURALITY OF COMMUNICATIONPATHS, A SWITCHING NETWORK FOR SELECTIVELY INTERCONNECTING SAID PATHS,COMMON CONTROL MEANS FOR SELECTIVELY CONTROLLING SAID NETWORK TOESTABLISH A FIRST CONNECTION BETWEEN A CALLING ONE AND A CALLED ONE OFSAID PATHS, MEANS RESPONSIVE TO A FIRST DISCRETE SIGNAL FROM ONE OF SAIDCONNECTED PATHS FOR CAUSING SAID COMMON CONTROL MEANS TO RELEASE SAIDFIRST CONNECTION AND TO ESTABLISH A SECOND CONNECTION BETWEEN SAIDCALLING AND SAID CALLED PATHS, AND MEANS RESPONSIVE TO SUBSEQUENT CALLSIGNALING INFORMATION FROM ONE OF SAID CONNECTED PATHS FOR CAUSING SAIDCOMMON CONTROL MEANS TO ESTABLISH A THIRD CONNECTION THROUGH SAIDNETWORK BETWEEN SAID CONNECTED PATHS AND A THIRD ONE OF SAID PATHS.